const a = {
  "type": "dir",
  "name": "学习",
  "children": [
    {
      "type": "dir",
      "name": "vue3",
      "children": [
        {
          "type": "file",
          "name": "test.md",
          "fPath": "/var/www/notebook/学习/vue3/test.md"
        }
      ],
      "fPath": "/var/www/notebook/学习/vue3",
      "folded": true
    }
  ],
  "fPath": "/var/www/notebook/学习",
  "folded": false
}
const b = {
  "type": "dir",
  "name": "学习",
  "children": [
    {
      "type": "dir",
      "name": "vue3",
      "children": [
        {
          "type": "file",
          "name": "test.md",
          "fPath": "/var/www/notebook/学习/vue3/test.md"
        }
      ],
      "fPath": "/var/www/notebook/学习/vue3"
    }
  ],
  "fPath": "/var/www/notebook/学习",
  "folded": false
}
const c = Object.assign(a,b)
console.log(`a ==> `, JSON.stringify(a, null, 2))
console.log(`c ==> `, JSON.stringify(c, null, 2))
